<?php

/**
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 * http://www.gnu.org/copyleft/gpl.html
 */
 


/**
 *  @file
 *  @Author Samuel Maura
 *  Simple database connection abstraction layer
 *  
 *
 *
 */
 
 

require_once("".$_SERVER['DOCUMENT_ROOT']."/xenix/config/db.inc");

class DBManager{

  private static $db_conn;

 // Connect to DB
  static function connect(){
   $conn = null; 
   if (DBManager::$db_conn === null){
     $conn = @mysqli_connect(DBHOST,DBUSER,DBPASSWORD,DBNAME);
     
     if (mysqli_connect_errno() !== 0){
       $msg = mysqli_connect_error();
       trigger_error("Could not connect to database ".DBNAME." message: ".$msg."",E_USER_ERROR);
     }
     
     /**
      * Set connection type to utf8 
      */
      
      if (!($utf8 = @mysqli_query($conn,"SET NAMES 'utf8' ")) ){
        trigger_error("Could not set utf8 connection",E_USER_ERROR);
      }
      
      DBManager::$db_conn = $conn;
   }
   
   return self::$db_conn;
 } 
   
  

}


?>